11661026 has 16 divisors (see below), whose sum is σ = 18925368. Its totient is φ = 5356800.

The previous prime is 11661019. The next prime is 11661037. The reversal of 11661026 is 62016611.

It can be written as a sum of positive squares in 4 ways, for example, as 5285401 + 6375625 = 2299^2 + 2525^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11660992 and 11661010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5336 + ... + 7196.

Almost surely, 2^11661026 is an apocalyptic number.

11661026 is a deficient number, since it is larger than the sum of its proper divisors (7264342).

11661026 is a wasteful number, since it uses less digits than its factorization.

11661026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2117.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 11661026 is about 3414.8244464394. The cubic root of 11661026 is about 226.7665126246.

Adding to 11661026 its reverse (62016611), we get a palindrome (73677637).

The spelling of 11661026 in words is "eleven million, six hundred sixty-one thousand, twenty-six".